The upper magic boxes as are shown in the
engraving are about 12 in. square and 8-1/2 in. high for parlor
use and the lower boxes are 18 in. square and 10-1/2 in. high for
use in window displays. There is a partition arranged diagonally
in the box as shown in the plan view, which completely divides the
box into two parts. One-half the partition is fitted with a plain,
clear glass as shown. The partition and interior of the box are
rendered non-reflecting by painting with a dull, not shiny, black
color. When making of wood, a door must be provided on the side or
rear to make changes of exhibits. If the box is made large enough,
or in the larger size mentioned, openings may be made in the
bottom for this purpose, and also used in case of performing the
magic trick of allowing two persons to place their
[Illustration: Construction of Magic Boxes]
heads in the box and change from one to the other.
The electric globes are inserted as shown at LL through the top of
the box, one in each division. When the rear part is illuminated,
any article arranged within that part will be visible to the
spectator looking into the box through the front opening, but when
the front part is illuminated, and the back left dark, any article
placed therein will be reflected in.
Pages:
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336